"PCX" meaning in English

{
  "etymology_text": "Short for “personal computer exchange”, introduced in PC Paintbrush software in the 1980s.",
  "head_templates": [
    {
      "args": {},
      "expansion": "PCX",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "File formats",
          "orig": "en:File formats",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An image file format, no longer widely used, supporting up to 256 colours."
      ],
      "id": "en-PCX-en-name-JiMKg3AX",
      "links": [
        [
          "file format",
          "file format"
        ],
        [
          "image",
          "image"
        ],
        [
          "file",
          "file"
        ],
        [
          "format",
          "format"
        ]
      ],
      "qualifier": "file format",
      "raw_glosses": [
        "(file format) An image file format, no longer widely used, supporting up to 256 colours."
      ],
      "wikipedia": [
        "PC Paintbrush"
      ]
    }
  ],
  "word": "PCX"
}

{
  "etymology_text": "Short for “personal computer exchange”, introduced in PC Paintbrush software in the 1980s.",
  "head_templates": [
    {
      "args": {},
      "expansion": "PCX",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English proper nouns",
        "English uncountable nouns",
        "English words without vowels",
        "en:File formats"
      ],
      "glosses": [
        "An image file format, no longer widely used, supporting up to 256 colours."
      ],
      "links": [
        [
          "file format",
          "file format"
        ],
        [
          "image",
          "image"
        ],
        [
          "file",
          "file"
        ],
        [
          "format",
          "format"
        ]
      ],
      "qualifier": "file format",
      "raw_glosses": [
        "(file format) An image file format, no longer widely used, supporting up to 256 colours."
      ],
      "wikipedia": [
        "PC Paintbrush"
      ]
    }
  ],
  "word": "PCX"
}